Profiling machine



J. J. LA nucl-:R

PROFILING 'lucarne .Filed Juno 9, 1923 A TTORNEY Cil Patented Oct. 13,1925.

UNITED STATES PATENT CFFICE.

JERRY J. LA DUCER, OE HARTFORD, CONNECTICUT, AssIGNoR To rRATTa` WHITNEYCOMPANY, OE NEW YORK,N. Y., A CORPORATION OE NEW JERSEY.

PROFILING MACHINE.

Application filed June 9,

To all whom t may concern:

Be it known that I, JERRY J. LA DUOER, a citizen of the United States,residing at Hartford, in the county of Hartford and State ofConnecticut, have invented certain new and useful Improvements inProfiling Machines, of which the following is a speciication.

This invention relates to machine tools,

and particularly to profiling' machines.`

Such a machine, as illustrated inthe accompanying drawing, broadlyvcomprises a base, a. work table slidably mounted thereon, a cross railsupported on the base over the table, and one or a plurality of toolspindle supports slidable on the cross rail. Such machine ordinarilyworks to a pattern and the operator is required, during the operation ofthe machine, to manually move the work table and tools in a manner to.follow the cross rail by supporting much of the weight thereof onanti-friction rolle-rs, means being provided for adjusting the roll ersas may be desired. The primaryy objecty of thel invention is to provideimproved means for performing the functions stated.

Another Object of the invention is to provide each tool support with aplurality of levers, each lever carrying an anti-friction roller forengaging with the guideway of the cross rail, and means, preferablyincluding resilient means, for individually ad justing each lever tosupport a desired portion of the weight of the tool support ou therollers.

lVith the above and other objects in view, my invention consists in thefeatures of construction and operation setforth in the followingspecification and illustrated in the accompanying drawing. ln suchdrawing annexed hereto and forming a part of this specification, I haveshown one embodiment of my invention as applied to the tool supports ofa profiling machine, but it will be understood that the invention can beotherl 1923. seriali No. 644,387.

wise embodied and that the drawing is not tozbe construed as `definingor limiting the scope of the invention, the claims appended to thisspecification being relied upon for that purpose.

Referring to the figures of the drawing: Figure 1 is a fragmentary frontelevation of'a profiling machine embodying my invention. Y

ig.`2 is a side elevation thereof.

Fig. 3 is an enlarged fragmentary sectional View showing myimprovement.'

Referring more specifically to the drawing by reference characters,'1indicates the base of the machine having a table 2 slidably mounted onhorizontal ways- 3 thereon. A pair of uprights 4 respectively bolted tothe base at opposite sides of the table supporta cross rail 5 thereonover the table. Two tool spindle supporting saddles Gare illustrated asslidablymounted on the vrail and movable therealong by means of a screw7. A pair of tool spindles 8 are supported .vertically in heads 9slidable vertically in the saddles 6.- Each spindle 8 carries a tool 10andeach head 9 carries a former pin 11 adjacent the tool for cooperatingwith a pattern in the well-known manner.

The tool spindles 2 8 are adapted to be rotated from a shaft 12. Thisshaft is driven through gearing 13 operated by a belt 14. The spindlesmay be moved vertically by operating handles 15 and 16. These and othercooperating mechanism not specifically illustrated and described hereinare more` specifically illustrated and described in my said copendingapplication.

The table 2 is adapted to be moved along its ways by means of a screw17. The screw may be rotated to move the table by means of a handle 18.The screw 7 may be rotatedA to move the tool support 6 along the crossrail by means of a handle 19. The operative connections from the saidhandles to the elements moved thereby are specifically illustrated anddescribed in my before mentioned copending application.

The cross rail 5 is provided with two horizontally extending guideways20 and 21. The saddles 6 are supported in sliding contact with the lowerguideway 21, a gib 22 being interposed between guideway 21 and eachsaddle 6 in the usual manner. A pair of members or levers 23 are pivotedon each saddle above the guideway 20. Each of wir these levers comprisesa downwardly extending arm 23a and an upwardly extending arm 23h.

kfor the usual operation of the machine, the

screw plugs 25 are so adjusted that the greater'portion of the weight ofthe saddles is carried by the rollers 24. Suicient weight is left on thelower guideway 21 to leep the 'saddles in sliding Contact therewith. Theinterposed springs 26 function to 4maintain a'sinooth and constantcounterbalancing of the saddles as will be underi stood.

The operation and advantages of my improved mechanismare believed tobeclearly apparent from the above description. It will be vnoted that thework table is adapted to be moved in one direction by the operatinghandle 18 and the tool supports 6 are adapted to be'y moved in arelatively right angular direction by the handle 19. The table isrendered easily operative by the counter-balancing lmechanism describedin my aforementioned application and the tool supports are renderedeasily operative by my improvements disclosed herein. In suchvrimprovements, the-fine adjustment of the screw plugs 25r permits thecarrying of the greaterp'ortion'ot the load of thev supports 6r` uponrthe anti-friction rollers 24. The operner-to ator can therefore vwithlittle' effort move suchsupports along` the cross rail in a man.-

keep the'former pins 1l in contact with the pattern.- It should beunderstood that -ordinarily one tool l() is' a'iofughing tool and theother Vtool 10 is a inishing tool.

f Such arrangement permits the rough cutting and iinishing of al Vworkpiece 4from a "single pattern and at' one mounting of the y' workpieceonthe'table.

`That lI claim is: l. In a machine tool,the combination of a guidewaysupport, aV carriage slidablyr mounted thereon, a member'pivoted to the`carriage and having ktwo arms radiating from the pivot, an anti-frictionroller on one arm and in rolling contact with the lguideway, andv meansengaging the other arm for adjusting' the same about its pivot in amanner to transmit a portion of the weight of the carriage tothe rollerand guideway.

2. In a machine'tool, rthe combination of An anti-friction roller 24V-ismounted inthe end ofeach arm 2?)a and in al gui; eway support, acarriage slidably mounted thereon, a member pivoted to the carriage andhaving two arms radiating from the pivot,.an anti-frictionroller on o nearmv and in rolling ,contact with' the guide- Vway, resilient meansengaging the other arm,

and means for adjusting the resilient means to move the member about itspivot in a manner totransmit a portion oitl the weight of' the carriageto the roller and guideway.

3. In a machine tool, thecombination of a guideway s-upport, a carriageslidably mounted thereon, a bell crank pivoted to the carriage, ananti-friction roller on one arm 'of the bell cranlrand in rollingcontact with the guideway, and adjustable resilient means engaging theother arm of the bell crank for adjusting the same about its pivot in amanner to transmit a portion of the weight of the carriage to the rollerandL guideway.

4. In a machine tool, the combination of a guideway support, a carriageslidably mounted thereon, a plurality of members each pivoted to thecarriage and having two arms radiating from the pivot thereof, ananti-friction roller oiifone arm of each member and in rolling contactwith the support, and adjustable resilient means engaging the other armsof the members for adjusting the same about their pivots in a manner totransmit a portion of the weight of the carriage tothe rollers andsupport.

5. In a machine tool, the combination of a guideway support, ay carriageslidably mounted thereon, a plurality of members each pivoted to thecarriage and including a radiating arm, an-antifiiction roller on -eacliarm in rolling contact with the support, and adjustable resilient meanscooperating with the members for independently adjusting each memberabout its pivot in a manner to transmit a `portion of the weight of thecarriage to the rollers and support.

6. In a machine tool, the combination of a guideway support, a Acarriageslidably mounted thereon, a plurality ofk members each pivoted to thecarriage .and having two Aarms radiating from the pivot. thereof, an

anti-friction roller on one arm oi each member and in rolling contactwith the support, and means engaging the other arm` of each member forindependently adjusting each member .about its pivot in a manner totransmit a portion oi the weight ofthe c-arriage to the'rollers andsupport.

7 In a machinetool, the combination of a guideway support, a carriageslidably -mountedthereon, a lever pivoted to the carriage, ananti-friction roller on the 4lever and in rolling contact with theguideway, an elementscrew threaded tothe carriage,

Iand aspring between the ,element and lever,

the construction being such Athat rotation of the element adjusts thelever about its pivot in a manner to transmit a portion of the weight ofthe carriage to the roller and guideway.

8. In a machine tool, the combination of a guideway support, a carriageslidably mounted thereon, a lever pivoted to the carriage and having twoarms radiating from the pivot, an anti-friction roller on one arm of thelever and in rolling contact with the guideway, an element screwthreaded to the carriage and a spring between the element and the otherarm of the lever, the construction being such that rotation of theelement adjusts the lever about its pivot in a manner to transmit aportion of the weight of the carriage to the roller and guideway.

9. In a machine tool, the combination of a work support, a horizontallyextending cross rail over the support, a tool carriage slidably mountedon the rail, a plurality of levers pivoted to the carriage, ananti-triction roller on each lever and in rolling contact with the rail,and means including resilient means for independently adjusting eachlever about its pivot in a manner to transmit a portion of the weight ofthe carriage to the rollers and rail.

10. In a machine tool, the combination of a work support, a cross railover the support, the rail having a horizontally extending guidewaythereon, a tool carriage slidably mounted on the rail, two leversrespectively pivoted to opposite sides of the carriage over theguideway, an anti-friction roller on each lever and in rolling contactwith the guideway, and means including resilient means for adjustablymoving the levers about their pivots in a manner to transmit a portionof the weight of the carriage to the rollers and guideway.

11. In a machine tool, the combination of a work support, a cross railover the support, the rail having a horizontally extending` guidewaythereon, a tool carriage slidably mounted on the rail, two leverspivoted to the carriage over the guideway, each lever having an upwardlyextending' arm and a downwardly extending arm, an antifriction roller oneach downwardly extending arm and in rolling contact with the guideway,and screw threaded means c0- operating with the upwardly extending armsfor adjusting the levers about their pivots in a manner to transmit aportion of the weight of the carriage to the rollers and guideway.

12. In a machine tool, the combination of a support, a pair ofhorizontally extending guideways thereon, one guideway being verticallyabove the other, a carriage slidably mounted on the support and insliding contact with the lower guideway, resilient antifriction means onthe support andin rolling contact with the other guideway, and screwthreaded means for adjusting the first said means to vary the amount ofweight of the support carried by the anti-friction means on the upperguideway.

In testimony whereof, I hereto al'lix my sig-nature.

JERRY J. LA DUCER.

